same problem with app world icon disappeared after the upgrade ... even though it shows on the application list.
boot time seems to be a bit faster on the first screen (white progress bar)... but there is a big lag after the bar reaches the end ... so the whole process still takes forever.

memory seems to be a bit better ... but there are still memory leaks ... just not as bad as .592

had to manually get ride of visual voice mail stuff like in .592

also, this does not contain asian languages, so I have to copy a bunch of files from .592 to get the language support I needed.